A distant astronomical object (a quasar) is moving away from us at half the speed of light. what is the speed of the light we re
1 answer:
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Answer:
The capacitance per unit length is
(b) is correct option.
Explanation:
Given that,
Radius a= 2.50 mm
Radius b=7.50 mm
Dielectric constant = 3.68
Potential difference = 120 V
We need to calculate charge per length for the capacitance
Using formula of charge per length
Put the value into the formula
We know that,
We need to calculate the capacitance per unit length
Using formula of capacitance per unit length
Hence, The capacitance per unit length is
Answer:
<h3>The answer is 0.54 g/cm³</h3>Explanation:
The density of a substance can be found by using the formula
From the question we have
We have the final answer as
<h3>0.54 g/cm³</h3>Hope this helps you